We had a problem with a cfgrid
Coldfusion8 introduces an HTML cfgrid that is AWESOME!!!
It is something you should use.
It is based in the also excellent library Ext
But recently we were extruglying with it because when we tried to capture exceptions in the update functions nothing happened and it was terrible because a real life application NEEDS exception handling.
My code was something like this:
First file was places.cfc

And the problem where was it!!
It was not in any of those files it was in the application.cfm
There was an onError handler. So it was commented out and everything work perfect!
Well I just like to write down these little details so I don't make this silly things twice.
I hope this can be of any help